The much-maligned League of Nations experienced difficulties and shortcomings, which are visible in the functioning of the modern UN – and to a lesser extent, the International Criminal Court. George Stewart provides no less than thirteen reasons for the League’s failure, foremost among them the United States’ refusal to join, despite President Wilson’s labors as the prime architect. Stewart’s criticism of the League’s weaknesses, in its simultaneous impotence and incompetence, serves as a reminder for the need of robust, yet practical, international structures.